ITSPHUN Geometric Construction Kit - Original Polygons 120-piece system of interlocking shapes that can be combined in endless ways to make wonderful and colorful creations at the intersection of art and mathematics. Explore geometry by constructing Platonic, Archimedean and Johnson solids, prisms, nonconvex polyhedra, etc. Combine these to create your unique structures, or just use as a free-form creative medium. The interconnection method is simple and intuitive even for young children; no prior knowledge is necessary. Includes 36 triangular pieces, 24 square pieces, 24 pentagonal pieces, 24 hexagonal pieces, 12 additional pentagonal pieces for the package, and a deck of 14 double-sided idea cards. Please see our new Polygon set at http://www.amazon.com/gp/product/B00XQMI5GA